环境搭建
* IDE:intellij idea2017 3.4
* jdk:1.8
* mysql:5.7.19
* tomcat:8.5.23
* maven:3.5.0
* nginx:1.10.2
* windows10
建立数据库表
先在数据库中建立mall数据库,再分别建立(购物车、分类表、订单表、订单明细表、产品表、支付信息表、收获地址表、用户表),同时需要注意,为了将来检测业务问题,最好是在每个表中增加creat_time以及update_time两个字段。
创建工程
创建maven工程
完善项目包结构(在main下建立java、resources等文件夹以及在java下建立基本包)
main/java下各个包的作用
pojo:Plain Ordinary Java Object,存放简单实体类,对应数据库中的实体
vo:Value Object,值对象,通常用于业务层之间的数据传递,和PO一样也是仅仅包含数据而已.但应是抽象出的业务对象,可以和表对应,也可以不,这根据业务的需要.
dao:data access object数据访问对象,封装了对数据库的各种操作
service:供外部调用,对dao以及pojo进行了封装
util:工具包,存放工具类,如日期处理,加密类等
controller:视图层,本质是Servlet,主要是负责业务模块流程的控制,调用service接口的方法
配置tomcat
在idea的图标中点击该图标 进行项目配置(一开始是空白的没有tomcat的),先点击“+”,找到tomcat server,在选择local,进入到如下界面进行配置
配置pom.xml相关依赖
该项目总体架构是ssm框架,所以必须提前引入ssm框架的一些依赖
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com</groupId>
<artifactId>mymall</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>mymall Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<maven.compiler.encoding>UTF-8</maven.compiler.encoding>
<org.springframework.version>4.0.0.RELEASE</org.springframework.version>
<org.mybatis.version>3.4.1</org.mybatis.version>
<org.mybatis.spring.version>1.3.0</org.mybatis.spring.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-servlet-api</artifactId>
<version>8.5.23</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.7.3</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${org.mybatis.spring.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${org.mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.6.11</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.12</version>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
<!--<scope>runtime</scope>-->
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.1.2</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>1.1.2</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.6</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.5</version>
</dependency>
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.2.1</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<!--<scope>test</scope>-->
</dependency>
</dependencies>
<build>
<finalName>mymall</finalName>
<plugins>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
</plugin>
<!-- geelynote maven的核心插件之-complier插件默认只支持编译Java 1.4,因此需要加上支持高版本jre的配置,在pom.xml里面加上 增加编译插件 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
<compilerArguments>
<extdirs>${project.basedir}/src/main/webapp/WEB-INF/lib</extdirs>
</compilerArguments>
</configuration>
</plugin>
</plugins>
</build>
</project>
至此,我们项目的基本就搭好了,接下来是通过mybatis的逆向工程生成相关pojo、dao以及mapper文件